Petee ehlees



(No Model.)

P. EHLBRS.

AIR COMPRESSOR AND EXHAUSTER. No. 801,348. Patented July 1, 1-884.

WITNESSES: INVENTOR a; 0%; W g? a 92- BY l ATTORNEYS pressing orexhausting cylinders B B.

- I UNITE? STATES n'rnn'r Erica PETER Entries, on ALBANY, NEW YORK,ASSIGNOR TO SULLIVAN a EnLEns, OF SAME PLACE.

.AIR COMPRESSOR AND EXHAUSTER.

SPECIPICATIONIorming part of Letters Patent No. 301,348, dated July 1,18814.

Application filed August 21, 1883.

v To all whom it may concern Be it known that I, PETER EnLERs, ofAlbany, in the county of Albany and State of New York, have inventedcertainncw and useful Improvements in Air Compressors and Exhausters, ofwhich the following is a specification.

This invention has reference to an i1nproved air compressor orexhauster, in which the piston of the steam-cylinder is so connectedwith the pistons of one or more air compressing or exhausting cylindersthat the power developed by the steam-cylinder is utilized to betteradvantage in the air compressing or exhausting cylinders.

In the accompanying drawings, Figure 1 represents a verticallongitudinal section of my improved air compressor or exhauster. Fig. 2is an end elevation, partly in vertical transverse section on linewzv,Fig. 1; and Fig. 3 is a diagram showing the arrangement of thetransmitting mechanism between the steamcylinder and the air compressingor exhaust ing cylinders.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A A represent two upright supportingstandards of my improved air compressing or exhausting pump. Thestandards A are supported on a bed-plate, A, to the ends of which arefurther applied upright transverse standards A that support the innerheads of the air com- The uprightstandards A A support at their upperends a vertical steam-cylinder, O. The axis of the steam-cylinder G isin the same vertical plane with the axes of the horizontal aircompressing or exhausting cylinders B B, but at right angles, or nearlyso, to the horizontal axis of the cylinders B B. The piston-rod a of thesteamcylinder G is connected with a cross-head, I), that is guided inways of the standards A A, the cross-head I) being again connected byconnecting-rods d d to cranks D of a transverse horizontal shaft, D,that turns in bearings of the lower parts of the standards A A. Afly-wheel, D, is applied to one end of the shalt D, while the eccentricthat controls the slide-valve of the steam-cylinder O is applied to theother end of the crank-shaft D, as shown in Fig. 2. The transverseconnecting-pin of the cranks D D is passed through a cross-head, e, thatis guided in a vertical yoke, E, to which the piston-rods f f of thepistons of the air compressing or exhausting cylinders B B are rigidlysecured. In place of the yoke E, the cranks D D may be connected todouble piston-rods, which are again applied to crossheads thatreciprocate in horizontal ways, and are connected to the piston-rods ofthe cylinders B B. In case one compression or exhausting pump only isrequired, the second cylinder is replaced by a plain guide-sleeve forguiding the second piston-rod. This -sleeve may be considered asrepresented by the sleeve 8, shown at the right of Fig. 1 supported by aplate, t. When the pistons of the air-cylinders arrive at the ends oftheir strokes, the connecting-cranks D D are acted upon by the fullpower of the piston of the steam-cylinder, and therebycarried withoutdifficulty over the dead-points of the piston-rods of the air-cylinders,so that the pistons of the latter are better adapted to overcome theresistance of the air at the ends of their strokes. The advantages ofthis construction are that it provides for double-acting cylinders, thepiston-rods of which move in a right line, and are connected by a simpleintermediate mechanism with a steam-piston,whereby the power of thesteam is utilized to the best advantage.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. The combination of a vertical steam-cylinder,horizontal aircompressing or exhausting cylinders, the axes of which arelocated in the same plane with but at right angles to the axis of thesteam-cylinder, a transverse crankshaft, connecting-rods pivoted to thepistonrod of the steam-cylinder and the cranks of said crank-shaft, avertically-recip rocating cross-head connected to said crank-shaft, a 5

yoke for guiding said cross-head, and connected to the piston-rods ofthe air compressing or exhausting cylinders, substantially as and forthe purpose set forth.

2. The combination of the vertical. support- IOO ing-standards A, avertical steam-cylinder 0, supported at the ends of the standards A,piston-rod a of the piston of the steam-cylinder 0, cross head 1),connecting rods d d, transverse crank-shaft D D, cross-head 6, re- PETEREHLERS. ciprocating yoke E, piston-rods ff, and hori- In testimony thatI claim the foregoing as 10 my invention I have signed my name inpresence of two subscribing Witnesses.

zontal air compressing or exhausting cylin- Witnesses: ders B B,supported by transverse standards M. F. CAREY, A substantially asspecified. WM. LAOY.

